11907620350564 has 81 divisors (see below), whose sum is σ = 22324389327891. Its totient is φ = 5556660827760.

The previous prime is 11907620350559. The next prime is 11907620350567. The reversal of 11907620350564 is 46505302670911.

The square root of 11907620350564 is 3450742.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11907620350567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9310101277 + ... + 9310102555.

Almost surely, 2^{11907620350564} is an apocalyptic number.

11907620350564 is the 3450742-nd square number.

It is an amenable number.

11907620350564 is a deficient number, since it is larger than the sum of its proper divisors (10416768977327).

11907620350564 is an frugal number, since it uses more digits than its factorization.

11907620350564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 49.

Multiplying 11907620350564 by its sum of digits (49), we get a square (583473397177636 = 24155194²).

The spelling of 11907620350564 in words is "eleven trillion, nine hundred seven billion, six hundred twenty million, three hundred fifty thousand, five hundred sixty-four".